Prominent

I have 2 wifi connections, however my PC doesn't support wifi, so I stick to ethernet. My 2nd wireless connection is faster than the other. Is there any possible way for me to swap to the faster connection with ethernet? Again, I cannot use wireless connections on this PC, just Ethernet.

Titan

Option 1. Get a device which can act as "Wireless bridge" - connects to WiFi as client, and has Ethernet ports. A lot of current routers can do this.
Option 2: Get a WiFi adapter.
Option 3: If you have a laptop nearby with WiFi and Ethernet adapters, you can configure it (albeit tricky) to function as a bridge.